IDTQS3VH126 3.3V QUAD ACTIVE HIGH SWITCH FOR HOT SWAP APPLICATIONS INDUSTRIAL TEMPERATURE RANGE QUICKSWITCH(R) PRODUCTS 3.3V QUAD ACTIVE HIGH SWITCH FOR HOT SWAP APPLICATIONS (HOTSWITCHTM) IDTQS3VH126 FEATURES: DESCRIPTION: - The QS3VH126 HotSwitch Quad bus switch is specially designed for a hot-swapping environment. The QS3VH126 has very low ON resistance, resulting in under 250ps propagation delay through the switch. The switches can be turned ON under the control of individual LVTTLcompatible active high Output Enable signals for bidirectional data flow with no added delay or ground bounce. In the OFF and ON states, the switches are 5V-tolerant. In the OFF state, the switches offer very high impedence at the terminals. - - - - - - - - - - - - N channel FET switches with no parasitic diode to Vcc * No DC path to Vcc or GND * 5V tolerant in OFF and ON state 5V tolerant I/Os Low RON - 4 typical Flat RON characteristics from 0 - 5V Rail-to-rail switching 0 - 5V Bidirectional dataflow with near-zero delay: no added ground bounce Excellent RON matching between channels Vcc operation: 2.3V to 3.6V Maximum operating frequency for data - 150MHz LVTTL-compatible control Inputs Undershoot Clamp Diodes on all switch and control Inputs Low I/O capacitance, 4pF typical Available in QSOP and SOIC packages The combination of near-zero propagation delay, high OFF impedance, and over-voltage tolerance makes the QS3VH126 ideal for hot-swapping applications. The QS3VH126 is characterized for operation from -40C to +85C. APPLICATIONS: - - - - - PCI/Compact PCI hot-swapping 10/100 Base-T, Ethernet LAN switch Low distortion analog switch Replaces mechanical relay ATM 25/155 switching FUNCTIONAL BLOCK DIAGRAM 1A 2A 3A 4A 1Y 2Y 3Y 4Y 1O E 2O E 3O E 4O E INDUSTRIAL TEMPERATURE RANGE MARCH 2000 1 c 1999 Integrated Device Technology, Inc. DSC-5774/- IDTQS3VH126 3.3V QUAD ACTIVE HIGH SWITCH FOR HOT SWAP APPLICATIONS ABSOLUTE MAXIMUM RATING(1) PIN CONFIGURATION NC 1OE INDUSTRIAL TEMPERATURE RANGE Symbol Description Max. Unit 16 VTERM(2) Supply Voltage to Ground - 0.5 to 4.6 V 1 VCC VTERM(3) DC Switch Voltage VS - 0.5 to 5.5 V 2 15 4OE VTERM(3) VAC DC Input Voltage VIN AC Input Voltage (pulse width 20ns) - 0.5 to 5.5 -3 V V VOUT DC Output Current 120 mA 0.5 W -65 to 150 C 14 4A 13 4Y PMAX Maximum Power Dissipation 5 12 3OE TSTG Storage Temperature 2A 6 11 3A 2Y 7 10 3Y G ND 8 9 1A 3 1Y 4 2OE SO 16-7 NOTES: 1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. 2. VCC terminals. 3. All terminals except VCC. NC QSOP TOP VIEW CAPACITANCE (TA = +25 C, f = 1MHz, VIN = 0V, VOUT = 0V) Symbol Parameter(1) CIN Control Inputs Typ. 3 Max. 5 Unit pF 4 6 pF CI/O 1O E 1 14 VCC 1A 2 13 4O E 1Y 3 12 4A 2O E 4 SO 14-1 11 4Y 2A 5 10 2Y 6 9 3A G ND 7 8 3Y o Quickswitch Channels (Switch OFF) NOTE: 1. This parameter is guaranteed but not production tested. PIN DESCRIPTION 3O E Pin Names I/O Description 1A - 4A I/O Bus A 1Y - 4Y I/O Bus Y 1OE - 4OE I Bus Switch Enable FUNCTION TABLE (1) SOIC TOP VIEW OE A Y H H H Connect H L L Connect L X X Disconnect NOTE: 1. H = HIGH Voltage Level L = LOW Voltage Level X = Don't Care 2 Function IDTQS3VH126 3.3V QUAD ACTIVE HIGH SWITCH FOR HOT SWAP APPLICATIONS INDUSTRIAL TEMPERATURE RANGE DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE Following Conditions Apply Unless Otherwise Specified: Industrial: TA = -40C to +85C, VCC = 3.3V 0.3V Symbol VIH Parameter Input HIGH Voltage Test Conditions Guaranteed Logic HIGH for Control Inputs Min. 2 Typ.(1) -- Max. -- Unit V VIL Input LOW Voltage Guaranteed Logic LOW for Control Inputs -- -- 0.8 V IIN Input Leakage Current (Control Inputs) 0V VIN VCC -- -- 1 A IOZ Off-State Current (Hi-Z) 0V VOUT VCC, Switches OFF -- -- 1 A RON Switch ON Resistance VCC = Min., VIN = 0V, ION = 30mA -- 4 6 VCC = Min., VIN = 2.4V, ION = 15mA -- 5 8 NOTE: 1. Typical values are at VCC = 3.3V and TA = 25C. TYPICAL ON RESISTANCE vs VIN AT VCC = 3.3V 16 R ON 14 (ohms) 12 10 8 6 4 2 0 0.0 0.5 1.0 1.5 2.0 2.5 VIN (Volts) 3 3.0 3.5 4.0 4.5 5.0 IDTQS3VH126 3.3V QUAD ACTIVE HIGH SWITCH FOR HOT SWAP APPLICATIONS INDUSTRIAL TEMPERATURE RANGE POWER SUPPLY CHARACTERISTICS Symbol ICCQ Parameter Quiescent Power Supply Current ICC Power Supply Current(2, 3) per Input HIGH ICCD Dynamic Power Supply Current per MHz VCC (4) Test Conditions(1) = Max., VIN = GND or VCC, f = 0 VCC =Max., VIN = 3V, f = 0 per Control Input VCC = Max., A and Y Pins Open, Control Inputs Toggling @ 50% Duty Cycle Max. 3 Unit mA 30 A 0.25 mA/MHz NOTES: 1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics. 2. Per LVTLL driven input. A and Y pins do not contribute to Icc. 3. This parameter is guaranteed but not tested. 4. This parameter represents the current required to switch internal capacitance at the specified frequency. The A and Y inputs do not contribute to the Dynamic Power Supply Current. This parameter is guaranteed but not production tested. SWITCHING CHARACTERISTICS OVER OPERATING RANGE TA = -40C to +85C, VCC = 3.3V 0.3V CLOAD = 50pF, RLOAD = 500 unless otherwise noted Symbol tPLH tPHL tPZH tPZL tPHZ tPLZ fS fOE Parameter Data Propagation Delay(1,2) A to Y Switch Turn-On Delay OE to nA/nY Switch Turn-Off Delay(1) OE to nA/nY Operating Frequency - Data(1,4) OE = HIGH Operating Frequency - Enable (1,5) Min. (3) Typ. Max. Unit 0.2 ns 1.5 9 ns 1.5 8 ns 150(6) MHz 1 MHz NOTES: 1. This parameter is guaranteed but not production tested. 2. The bus switch contributes no propagation delay other than the RC delay of the ON resistance of the switch and the load capacitance. The time constant for the switch alone is of the order of 0.2ns at CL = 50pF. Since this time constant is much smaller than the rise and fall times of typical driving signals, it adds very little propagation delay to the system. Propagation delay of the bus switch, when used in a system, is determined by the driving circuit on the driving side of the switch and its interaction with the load on the driven side. 3. Minimums are guaranteed but not production tested. 4. Maximum frequency for bidirectional data flow. 5. Maximum toggle frequency for OE control input. 6. Measured at CLOAD = 30pF. 4 IDTQS3VH126 3.3V QUAD ACTIVE HIGH SWITCH FOR HOT SWAP APPLICATIONS INDUSTRIAL TEMPERATURE RANGE SOME APPLICATIONS FOR HOTSWITCH PRODUCTS RAIL-TO-RAIL SWITCHING NFET 0 to +5V Vcc = 3.3V +6.5V CHARGE PUMP OE 0 to +5V DRIVER SINGLE HOT SW ITCH FAST ETHERNET DATA SWITCHING (LAN SWITCH) PHY 3VH SW ITCH 4.5V P P LOGIC SID E 10Mbps to 100Mbps Z = 100 Z = 100 >100m 4.5V P P TW ISTED PAIR LOGIC SID E 2V PP HOT SWAPPING: PCI/COMPACT PCI ZERO DOW N TIME SYSTEM PLUGGABLE CARD/ LIVE SYSTEM CARD I/O ON CARD LOGIC CONNECTOR QS3VHXXX CARD I/O ON CARD LOGIC CONNECTOR QS3VH XXX CPU RAM PCI/COMPACT PCI BUS 5 IDTQS3VH126 3.3V QUAD ACTIVE HIGH SWITCH FOR HOT SWAP APPLICATIONS INDUSTRIAL TEMPERATURE RANGE ORDERING INFORMATION IDTQS XXXXX XX Device Type Package X Process Blank Industrial (-40C to +85C) Q DC Quarter Size Outline Package (SO16-7) Small Outline IC (SO 14-1) 3VH126 3.3V Quad Active High Switch for Hot Sw ap Applications CORPORATE HEADQUARTERS 2975 Stender Way Santa Clara, CA 95054 for SALES: 800-345-7015 or 408-727-6116 fax: 408-492-8674 www.idt.com* *To search for sales office near you, please click the sales button found on our home page or dial the 800# above and press 2. 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